new SLAM dataset M2DGR

[SJTU-ViSYS]

hello，there comes a new SLAM dataset M2DGR, public on https://github.com/SJTU-ViSYS/M2DGR. It would be appreciated if you could update it to this webpage. Thanks in advance !

[SJTU-ViSYS]

It has been accepted by RA-L. Affiliation is Shanghai Jiaotong University, Year is 2021, Platform is ground robot, environment is both indoors and outdoors on the campus, with GT pose and IMU